Repeating mechanism for clocks.



No. 662,904. Patented Dec. 4, I900. H. W. BAILEY & W. J. PARKINSDN.

REPEATING MECHANISM FOR CLOCKS.

(Application filed Feb. 6, 1900.; (I 0 II o d a I 4 Sheets--Sheet l.

m: mums Pawns co. PMcTauTnc" WASHINGTON, a. c.

Patented Dec. 4, I900.

H. W. BAILEY 81. W. J. PARKINSDN.

REPEATING MECHANISM FOR CLOCKS.

(No Model.)

(Application filed Feb. 6, 1900.)

136' 4 Sheets--Sheet 2.

Patented Dec. 4,1900

H. w. BAILEY & w. J. PARKINSON. BEPEATING MECHANISM FOR CLOCKS.

(No Model.)

(Application filed Feb. 6, 1900.)

4 Sheets-Sheet 3 m: Ncnms FzTcns co, woraumow SHINGTON, n. c.

No. 662,904. Patented Dec. 4, I900. H. W. BAILEY & W. J. PARKINSUN.

REPEATING MEGHANISM FOR CLOCKS.

(Application filed. Feb. 6, 1900.) (No Model.) 4 Sheets--Shaet 4.

THE NpRRlS warns c0. PNDTO'LIYHIL, wnsumcrou, 1:. cv

UNTTED STATES ATlENT @rrrcn.

IIARLO XV \V. BAILEY AND WILLIAM J. PARKINSON, OF BUFFALO, NEW YORK.

REPEATING MECHANISM FOR GLQCKS.

SPECIFICATION forming part of Letters Patent No. 662,904, dated December4, 1900.

Application filed February 6, 1900. serial No. 4,213. (No model.)

To all whom it may concern:

Be it known that we, HARLOW W. BAILEY and WILLIAM J. PARKINSON, citizensof the United States, residing at Buffalo, in the county of Erie andState of New York, have invented certain new and useful Improvements inRepeating Mechanism for Clocks and Watches; and we do hereby declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it appertains tomake and use the same, reference being had to the accompanying drawings,and to figures of reference marked thereon, which form a part of thisspecification.

Our invention relates to improvements in repeating mechanism forclocks,and more particularly to that class of repeating mechanism whicheffects the striking of the hour, the quarter, and the minute of thequarter.

The object of our invention is to effect the correct striking of thehour, the quarter, and the minute of the quarter at all times and underall conditions, in the sense of being entirely independent of gravity.

To that end our invention consists of apivoted operating-lever carryingan integral segment-gear which winds the mainspring for moving thegeared retarding-train, and an integral radial arm provided at its outerend with a spring carrier, hour, quarter, and minute toothed segmentspivoted on a common axis with the operating-lever and adapted foroperative engagement with the spring carrier, tails upon the inner endsof the toothed segments, hour, quarter, and minute cams pivoted upon thecentral clock-arbor and adapted for operative engagement with the tailsupon the hour, quarter, and minute toothed segments, individualspring-pressed pawls for engaging and holding the toothed segments whennot in operation, a releasing device for disengaging the spring-pawlsfrom the toothed segments to permit them to operate, individual slidingand swinging springpressed hammertrips adapted for operative engagementwith the toothed segments, and the hell-hammer for audibly indicatingthe hour, quarter, and minute.

()ur invention further consists in certain details of construction, allof which will be fully hereinafter described and claimed.

In the drawings, Figure 1 is a front elevation of our improved repeatingmechanism with the mainspring and geared retardingtrain removed. Fig. 2is a view similar to Fig. l, but with the hour toothed segment andhour-cam removed. Fig. 3 is a view similar to Fig.2, but with the hourand quarter toothed segments and cams removed. Fig. 4: is a frontelevation showing the operating-lever, its segment-gear, its integralradial arm provided with its spring-carrier,and the gearedsteadying-train, the three toothed segments and cams being removed. Fig.5 is a transverse section through the central clock-arbor, showingrelative position of parts. Figs. 6, 7, and 8 are detached detail viewsof the hour, quarter, and minute cams, respectively. Fig. 9 is adetached perspectiveview ol' the sliding spring-pressed hammer-trips.Fig. 10 is a similar view of the springpressed pawls and tripping-lever.Fig. 11 is a detached detail of the spring-carrier upon the radial armof the operating-lever. Fig. 12 is a similar View of the star-wheel andits spring-pawl. Fig. 13 is a similar view of the spring-carrier for thehour, quarter, and minute cams. Fig. 1a is a similar view of theretarding-disk and its spring-pawl; and Fig. 15 is a transverse sect-ionof Fig. 11, taken in the line .v.

Referring to the drawings, 1 (see Fig. 5) is a fragmentary portion ofthe clock-casing, and 2 the casing inclosing our improved repeatingmechanism, which, as will be seen, can be applied to a complete clock,with a few minor changes in the motion-work for instance, the auxiliarycasing 2 can be added to the main casing 1, and the central arbor 3 olthe clock proper can be extended sufficiently to carry certain portionsof our repeating mechanism, as shown in Fig. 5. The hour-wheel at,carrying the hour-hand 5, is mounted upon the extended arbor 23 withinthe casing 2 and in close proximity to the dial 6. The minute-hand 7 ismounted upon the projecting end of the central arbor The minute-wheelpinion S is mounted upon its extended arbor 9 within the chamber 2 andintermeshes with the hour-wheel 1-. The

season (not 15 is a thin plate pivoted at the point 16.

upon the radial arm 1%. (See Fi 11.) One side of this plate tapers to apoint, upon which is mounted the raised triangular carrier 17. (SeeFigs. 11 and 15.) Upon the other side of the plate 15 is theright-angled arm 18, which rests normally against the pin 19 upon theradial arm l-i. A leaf-spring 20 has one end secured to the arm 18, itsother free end passing loosely through the slotted post 21 upon theradial arm 1 1.

Spur 22 projects from the outer end of the radial arm 14: upon the sideadjacent to the triangularcarrier 17. The carrier-17 is thrown inwardlyupon the pivot in ope 'ation and against the action of the leaf-spring20, which restores it to its normal position against the pin 19 afterits release.

The extreme outer edge 22 of the plate 15 is curved, as shown in Fig.11, for a purpose which will fully appear hereinafter. Upon the arbor 11and next to the segment-gear 1 upon the lever-arm 10 is the minutetoothed segment, consisting of the curved arm 23, (see Fig. 8,) havingthe r verse curved extension 24, the outer operative edge of which isthe segment 01' a circle the center of which is at the arbor 11, uponwhich it is pivoted. Starting from the outer end of the curved extensionare a series of teeth 25, fourteen in number. At the inner pivoted endof the arm 23 is the tapering curved tail 26. Near the base of the tail26 is the spur 27, (see Fi 3,) adapted for removable engagement with thecurved end of the wire spring 2n, the outer end of which is rigidlysecured in the post 29. At the junction of the curved arm 23 and itscurved extension 2 is located the pin 30. Next beyond the toothedsegment 23 2a and mounted upon the arborll is the metal washer 31,having the extension 32, with an open slotted end adapted for thereception of the rigid pin 33, which serves to hold the washer l'romlateral movement. Next beyond the washer 31 and pivoted upon the arbor11 is the quarter toothed segment, consisting of the arm an, having thesegmental extension The outer operative edge of this extension is thesegment of a circle the center of which is at the arbor 11. Startingfrom the inner end of this segment are three sets of teeth 36 two ineach set and at equal intervals apart. Beyond these teeth So, also atequal intervals apart, are the three notches 37, 38, and 39.

a0 is a curved slot open at its inner end concentric with the operativeedge of the segmental extension 35, in which it is located, and aboutone-half the length of such extension.

s1 is a pin upon the extension 35, located adjacent to the outer end ofthe slot 10.

At the inner pivoted end of the arm 84. is the curved tail 4:2, havingits outer-end curved abruptly in an upward direciiou. Near the base ofthe tail 1-2 is the spur e3, Fig. 2,) adapted for removable engagementwith the curved end of the wire spring li, the outer end of which isrigidlysecured in the post 29. Next beyond the toothed segment Si andmounted upon the arbor ll is the metal washer 45, having the extensionit, with an open slotted end adapted for the reception oi? the rigid.pin 33, which serv s to hold the washer from lateral movement. h extbeyond the washer 4:5 and pivoted upon the arbor ll is the hour toothedsegment,consisting ot the arm 47, having the segmental extension a8.(See Fig. 1.) The outer operative edge of this extension is the segmentof a circle the center of which is at the arbor 11. Starting from theinner end of this segment andextcnding the entire length of itsoperative edge are the series of teeth &9, fourteen in number.

is a pin upon the segmental extension 4-8, located near its inner end,as shown. At the inner pivoted end of the arm 1? is the tapering curvedtail 51. Near the base of this tail is the spur 52, (see Fig. 1,)adapted for removable engagement with the curved end of the wire spring53, the other end of which is rigidly secured in the post 29. Upon theouter end of the arbor 11 is the scrcw-thrcadcd shoulder-washer 51,which serves to keep the series of toothed segments and their interposedwashers upon the arbor 11 in sul'licientlyclose contact to permit oftheirirce operative movement.

Referring to Fig. 4, is a gearwheel mounted upon the rigid arbor 50,which car ries a ribbon-spring, (not shown,) the inner end of which issecured to the arbor 5i) and the outer end to the gear-whccl55. in frontofv the spring is the raichet-wlmcl 57, also mounted upon the arbor 50.The spring-pawl 58 is pivoted to the gear-wheel 55 and is adapted forengagement with the ratchet-wheel 57. In rear oi the ratchet-wheel 57and rigidly scoured thereto the gear -wheel 58). Upon the outer end ofthe arbor 50 is the screw-threaded shoulder-washer (it), which serves tokeep the ratchet and gear wheels in position upon the arbor. Thegear-wheel 59 operates the geared retarding-train til, as will be fullyhereinafter explained.

Friction-tight upon the central arbor 5 and adjacent to the front wall()2 of the clock-casing 1. (see Figs. 5 and 15) is a couplerforoperating the repeating mechanism, consisting of the disk (53, havingthe circular groovcitl,

which does not extend entirely around the disk. In the right-hand end ofthis groove is the slot 65. In the other end of the groove 64 is rigidlyseated one end of a circular spring 66, which rests in such groove, itsother end extending partly across the slot 65.

Upon the arbor 3, next adjacent to the disk coupler just described, isthe sleeve 57, rigidly carrying upon its inner end the disk 68, havingthe three teeth 69, 70, and 71. (See Figs. 5 and 14.)

72 isa pin upon the disk 08, which passes into the slot 65 in the diskcoupler 63. Upon the front end of this sleeve 67 is rigidly secured theseries of minute-cams 73, four in number, all lying in the same plane.(See Figs. 5 and 8.) Upon one of these cams 73 is the aperture 7 1. Itwill be seen from the above description that the disk 68, theminute-cams 73, and the connecting-sleeve (57 are practically all in onepiece and are loosely mounted upon the central arbor 3. Loosely mountedupon the arbor 3 and next to the minute-cams 73 are the quartencams 75,7(5, 77, and 78. (See Figs. 5 and 7.) These cams are all in one pieceand in the same plane. Upon the inner face of the cam. is the pin 79,which passes into the aperture 74 in one of the minute cams 73, whichpractically locks these quarter-cams to the minute-cams upon the centralarbor 3. Upon the rear end of the quarter-cam 75 is pivoted the pawl 80,which has the abutting edge 81, extending out beyond the cam 80, theinwardly-projecting point 82, and the upper spur 83 near thepivot'point. 8-118 a curved spring rigidly secured at one end to the cam75, its free end resting against the spur 83 of the pawl 80.

85 is a pin on the cam 75, which limits the outward movement of the pawl80 under the action of the spring 84:, as clearly shown in Fig. 7.

86 is a twelve-toothed disk loosely mounted upon the arbor 3 next to thequarter-cams 75, 76, 77, and 78.

Upon the arbor 3 and rigid with the twelvetoothed disk 86 is thehour-cam 87, consisting of a series of twelve circular steps 8S,wit-hde-- creasing radii, all having the same center. At the rear end of eachstep is an outwardlyprojectingextension 89. Rigidwiththehourcam 87 andtoothed disk 86 is the star-wheel 90, with twelve equidistant teeth 91.A spring 92 (see Fig. 12) has one of its ends rigid in the post 93 inthe casing 2, its other end being provided with the angular V-shapedpawl 9%, adapted for successive engagement in the spaces between theteeth 91 of the starwheel 90.

The curved spring 95 (see Figs. 3 311C111) has one of its ends rigidlysecured in the post 96, its other end being provided with the angularV-shaped pawl 97, adapted for successive engagement with the three teeth69, 70, and 71 01 the quarter-disk 68. The pin 98 limits the inward playof the V-shaped pawl 97.

Fig. 10 presents a perspective view of the in question.

individual spring-pressed pawls for engaging and holding the toothedsegments when not in operation. 99, 100, and 101 are the pawls Thesepawls are pivoted to the rigid arbor 102, and 103 103 are washersinterposed between the pawls. The pawls are slightly curved to the left,having inclined pointed ends 10% and upper shoulder 105. 106 is a rigidpost to which are secured the three fiat springs 107, the free ends ofwhich bear down upon the shoulders of the pawls 99, 100, and 101. Thereleasing device for these pawls consists of the angular plate havingthe long lower arm 108 and the short upper arm 109. This releasingdevice is pivoted to the post 110 and has the rigid rod 111 extendingacross in front of the pawls. At the lower end of the arm 108 is theshort pin 1'12, adapted for engagement with the spur 22 upon thecarrier-arm 14. (See Fig. 11.) This releasing device 108 109 is withinthe clock-casing, the pin 112, just described, passing through thecurved elongated slot 114: (see Fig. at) in the division-wall 62 betweenthe two casings.

The flat leaf-spring 115 has one end embedded in the outer end of thearm 109 of the releasing device, its other sliding loosely in theslotted post 116.

In Fig. 9 is shown in perspective the individual sliding spring-pressedhammer-trips and their attachments 117. 118 and 119 are the hammertrips, each having a central elongated slot 120, an angularspring-seat 121 at one end, and a tapering projection 122 at its otherend. These hammer-trips are pivoted upon the post 123, which passesthrough the elongated slots 1120, which permits the ham mer-trips tohave a snug sliding motion upon the post 123. \Vashers are to be placedupon the post 123 between and on the outside of the ham mer-trips toprevent lateral movement with respect to each other and to give them asnug working fit. These washers are not shown, for the reason that theirpresence would interfere with the clear position of the elongated slots.Upon the rigid post 12a are mounted the tlat springs 125, three innumber and of the same length, their free ends resting upon thespring-seats 121 of the hammertrips and holding them in sliding contactwith the bearing-post 120, which forms a front seat for the same.

128 is a pivoted arbor located just above the pointed ends of thehammer-trips. Upon the right-hand side of the arbor 128 are the inclinedpins 129, adapted to receive the impulse ot the sliding hammer-trips117, 118, and 119. Upon the upper side of the pivoted arbor 128 is therigid rod 130, carrying at its outerend the hammer 131, adapted forstriking with the bell 132, mounted on the bracket 133. Another pin 131is mounted on the pivoted arbor 128 and is adapted by its position toreceive the lifting action of the flat spring 135, rigidly secured inthe arbor 12 A cushion 130, ct soft. material, is placed just be- &662,904

yond the pivoted arbor to limit the downward stroke of the hammer.

137, 138, and 139 (see Fig. 1-) are three studs rigid upon thedivision-wall 62 and all at the same radial distance from the arbor 11as a center. These studs are adapted to depress the spring-pressed plate15 as its rounded surface 22 passes in contact with the same, as willmore fully hereinafter appear. These studs 137, 133, and 139 rise abovethe pin 112, projecting through the slot 114, so that the spring-pressedplate will not contact with the pin 112 in passing, such pin 112 beingadapted for impact with the spur 22 on the arm 14.

Having described the working parts in detail, we will now proceed toshow their operation.

The normal position of the lever and its attached spring-carrier isshown in full lines in Figs. 1, 2, and The outer end of the integralradial arm 14, upon which the springcarrier is located, rests againstthe stop-pin 110. To start the repeating mechanism, the lever 10 ispushed down until it comes in contact with the stop-pin 1 11, as shownin dotted lines in Fig. 3 and in full lines in Fig. 4:. In its downwardmovement the segmental gear 13 turns the geai wheel 55 and winds thespring. The spring-pawl 5S rides over the teeth of the ratchet-wheel 57until the lever 10 finishes its downward movement. The pawl 58 thendrops into engagement with the last ratchet-tooth passed. 0n releasingthe lever 10 the reflex action of the coiled spring carries the leverback to its normal position, and at the same time the pawl 58 turns itsengaged ratchet and with it the attached gearwheel 59, which in turndrives the geared train 61, which serves to steady the travel of thespring-carrier attached to the outer end of the radial arm 11, integralwith the lever 10. In place of the geared retarding-train 61 a pneumaticdevice might be substituted for producing the same mechanical effect. Asthe arm 1st swings upwardly the spur 22 thereon comes in contact withthe pin 112 on the releasing device 108 109. This pin 1.12 is movedforward along the slot 11% and carries with it the releasing device. Thepin 111, rigid upon the arm 108, is pressed against the springpressedpawls 99, 1.00, and 101, throwing them out of engagement with the teethof the hour, quarter, and minute segments 48, 35, and 24:, respectively,and thus permitting them to take their respective operative positions,as will be more fully explained hereinafter. On releasing the lever 10the spring-carrier commences itsforward travel to the right. As itreaches the pin 50 upon the hour toothed segment -19 the raisedtriangular carrier 17 strikes the pin 50 and carries the hour toothedsegment with it against the action of its spring 53, causing each tooth49, which is to the left of the contact end of the hammer-trip 117, tolift such hammer-trip against the action of its spring 125 and cause thetapering projection 122 to he slid up against the pin 136 ugon thepivoted arbor 128. As the pin 136 is raised it lifts the hammer 131 awayfrom the bell. As the tooth passes out of engagement with the hammer-trip the spring 12 1 restores the hammer-trip to its normalposition, releases its contact with the pin 129, and permits the spring135 to force the hammer 131 against the bell, the rod 130, carrying thebell, first striking the cushion 136. It will be seen that by reason ofthe elongated slots 120, through which the pivoting-pin 123 passes, thehammer-trip is given a sliding movement upon the pivotingpin 123 and thebcaring post 126 during the striking action. As the toothed segment 48is moved to its operative position by its spring 53 the teeth 49 of thesegment as swing the hammer-trip 117 upon its pivot-pin 123 against theaction of the spring 125, the tapering projection 122 s\ving ing clearof the pin 1.29. 13y reason of the combined sliding and swinging motionof the hammer-trip it is impossible for the point of one of the teeth tobecome locked against the contact-point of the hammer-trip during theact of passing to ring the bell, for if a tooth should fall back and notclear the contactpoint of the hammer-trip it would necessarily lockunless such hammer-trip were provided with a sliding and swingingmotion, as shown. When the last tooth 19 has passed the hammer-trip 117,the stud 137 comes in contact with the extreme outer edge 22 of theplate 15, upon which the carrier 17 is located. The plate is thus swunginwardly against the action of its spring 20, and the point 142 of thecarrier 17 is pressed below the pin on the toothed segment 4-7, thusreleasing the carrier from engagement therewith. Just prior to thecompletion of this action the spring-pre sed pawl 99 is ready forlocking engagement with the forward tooth of the segment t8, suchengagement being completed by the slight backward movement of thesegment 18, caused by its spring 53. The spring-carrier is then readyfor engagement with the pin 11. Upon the quarter toothed segment 35 (seeFig. 2) when it reaches the pin 11 it carries the quarter toothedsegment along with it against the action of its spring 1 1 in the samemanner as with the hour toothed segment 48. The teeth 36 for strikingthe quarters are arranged in pairs, as shown, with an extended intervalof space between the same, the double tooth being employed todistinguish the striking of the quarter from that of the hour andminute. As the quarter-segment is carried past its hammer-trip 118 itcauses each pair of teeth 36, which are to the left of the contact endof its hammer-trip 118, to operate same and ring the bell twice for eachquarter in the manner already described. As the last tooth 30 passes itshammer-trip 118 its spring-pawl engages with the notch 37 and locks thetoothed segment 35. The spring carrier disengages itself with thetoothed ment just prior to the engagement of its spring-pawl 100 in themanner described in connection with the hour toothed segment 41:8. Thespring-carrier now passes on and engages with the pin 30 upon the minutetoothed segment 24, carrying it forward against the action of its spring28 (see Fig. 3) in the same manner as with the two previous segments.The pins 50, 411, and 30 on the hour, quarter, and minute segments areof different lengths, with their inner ends all in the same plane, sothat the triangular carrier 17 can positively engage with each pin as itreaches same. As the minute-segment 24 is carried past its hammer-trip119 it causes each tooth 25 which is to the left of the contact end ofits hammer-trip 119 to operate same and ring the bell once for eachminute beyond the quarter last rung. As the last teeth 25 passes itshammer-trip 119 its spring-pawl 101 engages with the last toot-h 25 andlocks the segment 24. The spring-carrier disengages itself with thetoothed segment 24; just prior to the engagement of its spring-pawl 101in the manner described in connection with the hour toothed segment 18.The spring-carrier continues its travel until it comes in contact withthe stop-pin 140. Pass ing to the series of cam on the central arbor 3,which operate in connection with the tails upon the hour, quarter, andminute toothed segments to regulate or determine their operativepositions, we have indicated in Figs. 1, 2, and 3 these cams in theirseparate and relative positions for causing the bell to strike thetwelve hours, the three-quarter, and the fourteen minutes to indicate12.59 oclock, or one minute to one oclock. The coupler 63, (see Fig.13,) friction-tight upon the central arbor 3. shows the pin 72 upon thethreetoothed disk 68 pressed against the right-hand wall of the slot andagainst the action of the spring 66. This serves to connect the centralarbor 3 of the clock mechanism with the disk 68, and the minute-cam 73,being integral with the disk 68 by means of the intervening collar 67,(see Fig. 5,) therefore receives the impulse of the central arbor 3, as

shown in Figs. 2 and 3 in full lines. The tail 26 of the minute toothedsegment 24 is free to travel to the inner point of one of the arms ofthe cam 73, as shown in dotted lines in Fig. 3. This throws theminute-segment 24c also to the position shown in dotted lines in thesame figure, or, in other words, to lift its hammertrip 119 fourteentimes to audihly indicate through the bell the proper number of minutes.The tail 42 of the quarter-segment 35 engages with one of the fourcam-surfaces 75, 76, 77, and 78 to determine the operative position ofthe pairs of teeth 36 of the segment 35. In Fig. 2 the tail 42 is shownfree to travel to the lowest cam-surface 78, which would result inthrowing the segment 35 over to the left until all three pairs of teeth36 have passed the hammer-trip 118, so that in the return movement ofthe segment three double rings of the hell are sounded toindlifg'tfi H16three" M M w quarters. lhe tail 51 of the hoursegmflll engages with oneof the steps 88 of the houi ig cam 87 to determine the operativeposition of the teeth 49 on the segment 48. 111 Fig. 1 the tail 51 isshown free to travel by the action of its spring 53 up to the last stepor that with the shortest radius. This movement of the tail will resultin throwing the toothed segment a8 twelve teeth to the left of thehammer-trip 117, so that in the return movement of the segment twelverings of the hell are sounded to indicate the proper hour. It will thusbe seen that the positions of the three cams and their resultant effectupon the three toothed segments, as has just been described, will causethe bell to indicate the hour of 12.59, or one minute of one oclock.

The twelve-toothed disk 86 (see Fig. 7) is engaged with the pawl duringthe conditions just described and is thrown into such engagement by theabutting edge 81 of the pawl 80 striking the abutment 14:4, mounted uponthe casing. (See Fig. 2.) As thequartor-cam 75, 76, 77, and 78, to whichthe pawl 80 is pivoted, travels around it moves the disk 86, which inturn carries with it the hourcam 87 and star-wheel 90, which are bothrigid with such disk. Such movement is continued until one of the teeth91 of the starwheel 90 passes the angular Vshaped pawl 9i. Under theseconditions it will continue to strike 15.59 as often as the lever ispulled down until one of the teeth 91 passes the angular V-shaped pawl94:, which is then forced in between that tooth and the next, causingthe starwheel to jump forward, and with it the disk 86 and hour-cam 87.This movement carries the curved step of cam 87 with the longest radiusin front of the tail 51 of the hour-segi'nent 48, which permits only onetooth of the segment to engage its hammertrip, and consequently only onebell is struck. Simultaneously with the jumping forward of thestar-wheel 90 comes a similar movement of the quarterand minute camsandthe threetoothed disk 68 under the action of the spring (36, suchmovement extending to the opposite wall of the slot 65. At the sameinstant the pawl 80 is carried out of engagement with the abutment 144;,and consequently disengages itself from the disk 86 through the actionof its spring 84:. The jumping forward of the quarter and minute cams,as just described, is about one sixtieth of the circle surrounding theminute-cam. In such positions the highest points of both cams arepresented to tails 12 and 26 of the segments 341- and 23. Under thiscondition the quarter and minute segments are held by the engaged tails,thus preventing any of their teeth from passing their hammer-trips.Consequently no bells are struck for the quarter or minutes. Now onpulling down the lever 10 only one hell is struck, and that by thehour-segment, thus indicating one oclock. At fourteen minutes past oneonetooth 6f the hour-segment passes its f g slfil'lp into operativeposition. The tll fz-ll'ter-seginent remains out of engagement with itsham mer-trip, as at one oclock, previously described, and the tail ofthe minutesegment 24 is in engagement with the inner end of theoperative curve of one of the minute-cams, as shown in dotted lines inFig. This permits all of the fourteen teeth of the minute-segment topass its hammer-trip 101 into operative position. On pulling down thelever 10 one hell is struck by the hoursegment, no bells by thequarter-segment, and fourteen bells by the minute-segment, thusindicating t'ourteen minutes past one. At this point the tooth 71 on thedisk 68 comes in contact with the V-shaped pawl 97. As the movementcontinues the pin 72 on the disk 68 is forced back against the action ofthe spring 66 until itstrikes the right-hand wall of the slot 05. Underthese conditions it will continue to strike fourteen minutes past oneuntil the tooth 71 passes the t -shaped pawl J7. The quarter and minuteearns are then jumped forward by the double action of the springs and66. Under these conditions the minute-segment is safely held fromoperative engagement and the tail of the quartensegment 42 is free topass down upon the surface 76 of the quarter-cam. Now on pulling downthe lever 10 one bell is struck by the hour-segment, two bells arestruck by the quarter-segm ent,indicating onequarterof an hour, and nominutes are struck by the minute-segment, the hour indicated beingone-quarter of an hour past one. Should the change in connection withthe threetoothed disk 68 take place just after the lever 10has beenpulled down, the tail 4:2 of the quarter-segment 35 is prevented fromaccidentally reaching a lower step by reason of the position of the tail26 of the minute-segment 2%, as shown in dotted lines in Fig. 3, suchposition preventing a further movement of the quarter-cam, and with itthe minutecam,which is rigidly connected thereto. This result may bealso accomplished by the presence 01' the additional notches 3S and 39in the outer edge of the quarter-segment 35, which are adapted forauton'iatic locking engagement with the spring-pawl during its backwardmovement. Should the star-wheel 90 change its position just after thedownward stroke of the lever 10 at any hour, the outwardly-extendingprojection 89 at the end of each circular step will prevent the tail 51of the hour-segment l-S from prematurely reaching the next succeedingstep. The wall 145 on the hour-cam between the circular step having theshortest radius and the next step having the longest radius serves inthe same capacity as any one of the outwardlyextending projections 89.

'While we have shown the above-described mechanism as applied directlyto a clock, it is apparent that such mechanism could also be applied andcombined with the mechanism of a watch.

We olaim 1. A repeating mechanism for clocks and watches consistingessen t-ially of a pivoted operating-lever-spring carrier upon theoperating-lever, hour, quarter and minute toothed segments pivoted on acommon axis with the operatiugdever and adapted for ope ative engagementwith the spring-carrier tails upon the inner ends of the toothedsegments, hour, quarter and minute cams pivoted upon the centralolockarbor and adapted foroperative engagement with the tails upon thetoothed segments means for holding the toothed segments when not inoperation and for releasing the same, a bell and interposed meansbetween the bell and toothed segments for ringing the same.

2. A repeating mechanism for clocks and watches consisting essentiallyof a retardingtrain a pivoted operatinglever connected with theretarding-train,a spri rig-carrier upon the opera ti rig-lever, hour,quarter and min ute too hed segments pivoted on a common axis with theooeratingdever and adapted for operative engagement with thospring-carrier, tails upon the inner ends of the toothed segments, hour,quarter and minute cams pivoted upon the central clock-arbor and adaptedfor operative engagement with the tails upon the toothed segn'ients,means for holding the toothed segments when not in operation and forreleasing the same a bell and interposed means between the bell andtoothed segments for ringing the same.

3. A repeating mechanism for clocks and watches consisting essentiallyof a retardingtrain a pivoted operatinglever connected with theretarding-train a springcarrier upon the operating-lever, hour, (1uarter and minute toothed segments pivoted on a common axis with theoperating-lever and adapted for operative engagement; withthespring-carrier, tails upon the inner ends of the toothed segments,hour, quarter and minute cams pivoted upon the central clock-arbor andadapted for operative engagement with the tails upon the toothedsegments, a co u pler-disk upon the central clock-arbor provided with acircular groove, a circular spring within the groove and a slot throughthe disk at the free end of the spring a toothed quarter-disk rigid withthe minute cam and provided with a pin adapted for movement in the slotof the coup-- ler-disk and against its spring, a spring V- shaped pawladapted for engagement with the teeth on'the quarter-disk means forholding the toothed segments when not in operation and for releasing thesame a bell and interposed means between the bell and toothed segmentsfor ringing the same all combined and operating as and for the purposestated.

4-. A repeating mechanism for clocks and watches consisting essentiallyof a retardingtrain a pivoted operating lever connected with theretaming-train a spring-carrier upon the operating-lever, hourquarterand minute toothed segments pivoted on a common axis IIO with theoperating-lever and adapted for operative engagen'lent with thespring-carrier, tails upon the inner ends of the toothed seg ments,hour, quarter and minute cams pivoted upon the central clock-arbor andadapted for operative engagement with the tails upon the toothedsegments, a twelve't-oothed disk upon the central clock-arbor andadjacent to the quarter-cam, a spring-pawl pivoted upon the quarter-camand adapted for operative engagement with the twelve-toothed disk, atwelve-toothed star-wheel upon the central clock-arbor and rigid withthe hour-cam and the twelve-toothed disk, a spring V-shaped pawl adaptedfor operative engagement with the star-wheel, an abutment on the casingfor operative engagement with the sp ri ngpawl on the quarter-cam, meansfor holdingthe toothed segments when not in operation and for releasingthe same a bell and interposed means between the bell and toothedsegments for ringing the same all combined and operating as and for thepurpose stated.

5. A repeating mechanism for clocks and watches consisting essentiallyof a retardingtrain a pivoted operating lever connected with theretarding-train a spring-carrier upon the operating-lever, hour, quarterand minute toothed segments pivoted on a common axis with theoperating-lever and adapted for operative engagement with thespring-carrier, tails upon the inner ends of the toothed segments, hour,quarter and-minute cams pivoted upon the central clock-arborand adaptedfor operative engagement with the tails upon the toothed segments, acoupler-disk upon the central clock-arbor provided with circular groove,a circular spring within the groove and a slot through the disk at thefree end of the spring, a toothed quarter-disk rigid with the minute camand provided with a pin adapted for movement in the slot of thecoupler-disk and against its spring, a spring V- shaped pawl adapted forengagement with the teeth of the quarter-disk, a twelve-toothed diskupon the central clock-arbor and adjacen t to the qu arter-cam, aspring-pawl pivoted upon the quartencam and adapted for operativeengagement with the twelve-toothed disk, a twelve-toothed star-wheelupon the central clock-arbor and rigid with the hour-cam and thetwelve-toothed disk, a spring V-shaped pawl adapted for operativeengagement with the star-wheel, an abutment on the casing for operativeengagement with the spring-pawl on the quarter-cam means forholding thetoothed segments when not in operation and for releasing the same a belland interposed means between the bell and toothed segments for ringingthe same all combined and operating as and for the purpose stated.

(3. A repeating mechanism for clocks and watches consisting essentiallyof a pivoted 0perating-lever carrying an integral segmentgear, aretarding-train in engagement with the segment-gear on theoperating-lever, and an integral radial arm provided at its outer endwith a spring-carrier, hour, quarter and minute toothed segments pivotedon a common axis with the operating-lever and adapted for operativeengagement with the springearrier, tails upon the inner ends of thetoothed segments, hour, quarter and minute cams pivoted upon the centralclock-arbor and adapted for operative engagement with the tails upon thetoothed segments,individual spring-pressed pawls for engaging andholding the toothed segments when not in operation, a releasing devicefor disengaging the spring-pawls from the toothed segments to permitthem to operate,indi\'id ual sliding and swinging spring-pressed hammer-trips adapted for operative engagement with the toothed segments andthe bell-hammer for audibly indicating the hour, quarter and minute.

7. In a repeating mechanism for clocks and watches the combination withthe couplerdisk 63 upon the central clock-arbor provided with thecircular groove 6%,the circular spring 66 within the groove (it and theslot within the disk, of the quarter-disk 68 provided with the threeteeth 69, 70 and 71, the spring ii-shaped pawl 95, 97, adapted foroperative en gagement with the teeth 69, 70 and 71, the pin '72 on thequarter-disk (58 adapted for movement in the slot 65 of the coupler-disk63 and against the spring 66 and the minute-cam 73 rigid with thequarter-disk, for jumping the minute-cam forward so that it can safelyhold the tailpiece of the minute-segment 24 and prevent the teeth ofsuch segment from passing the hammer-trip 119.

8. In a repeating mechanism for clocks and watches the combination withthe star-wheel 90 having teeth 91, the spring V-shaped pawl 92, 94, thehour-cam S7 and the twelve-toothed disk 86, of the quarter-cam 75,76,77, 78, the spring-pawl pivoted to the quarter-cam, and the abutment144: mounted upon the easing, the star-wheel, hour-cam and twelvetootheddisk being rigidly connected all operating to jump the hour-cam, onestep forward for one complete revolution of the central clock-arbor uponwhich it is mounted.

9. in a repeating mechanism for clocks and watches the combination withthe star-wheel having teeth 91, the spring V-shaped pawl 92, 9%, thehour-cam 87 having the circular steps 88 each provided with the endextensions 89 and the twelve-toothed disk 86, of the quarter-cam 75, 76,77, 78 the spring-pawl 8O pivoted to the quarter-cam and the abutment14A mounted upon the casing, the star-wheel, hour-cam and twelve-tootheddisk being rigidly connected all operating to jump the hourcam one stepforward for one complete revolution of the central clock-arbor uponwhich it is mounted.

10. In a repeating mechanism for clocks and watches the combination withthe coupler-disk 63 upon the central clock-arbor, provided with thecircular groove 64:, the circular spring 66 within the groove 64 and theslot 65 within the disk of the quarter-disk 68 provided with the threeteeth 09, 70 and 71, the spring V-shaped pawl 95, 97, adapted foroperative engagement with the teeth 69, 70 and 71, the pin 72 on thequarter-disk 68 adapted for movement in the slot 65 of the couplerdisk63 and against the spring 66, the minutecam 73 rigid with thequarter-disk and provided with the orifice 74, and the quarter-cam 75,76, 77, 78, rigid with the minute-cam 73 and provided with the pin 143adapted for engagement Wi th the orifice 7st in the min ui'e-cam 73, alloperating to jump the quarter-cam forward so that the proper cam-surfacewill be safely presented to the tail 42 of the quartersegment 35.

11. In a repeating mechanism for clocks and watches the combination withthe hoursegment having the pin 50, the quarter-seg ment having the pin4.1, the minute-segment having the pin 30, and the studs 137,138 and 139on the casing, of the spring-carrier upon the outer end of the radialarm 14 consisting of the plate 15 pivoted upon the radial arm 1 andhaving the curved outer edge 22 and the raised triangular carrier 17 atone end of same, the right-angled arm 18 of the plate 15 carrying thespring 20 working loosely in the post 21, the triangular carrier beingadapted for successive engagement with the pins 50, 41, and and thecurved outer edge 22 of the plate 15 being adapted for contact with thestuds 137, 138 and 139 substantially as and for the purpose stated.

12. In a repeating mechanism for clocks and watches the combination withthe springpawls 99, 100 and 101 adapted for holding engagement with thehour, quarter and minute segments of the releasing device consisting ofthe angular plate having the long lower arm 10S and the short upper arm109, the rigid rod 111 extending across in front of the pawls, the shortpin 112 adapted for engagement with the spur 22 upon theradial arm 14.-npen which the spring-carrier is mounted all operating substantially asand for the purpose stated.

13. In a repeating mechanism for clocks and watches the combination withthe toothed hour, quarter and minute segments and the pin 127 upon thecasing of the spring-pressed hammer-trips 117, 118 and 119 provided withthe central elongated slots 120 the angular spring-seats 121 at one endand the tapering projections 122 at their other ends, the post uponwhich the hammer-trips have a sliding and swinging motion, thespring-pressed pivoted arbor 128 having the inclined pins 129 adapted toreceive the impulse of the sliding hammer-trips and the hammer 130, 131,rigid upon the pivoted arbor all operating substantially as and for thepurpose stated.

1a. In a repeating mechanism for clocks and watches the combination withthe hour, quarter and minute segments of the washers 31 and interposedbetween the segments and provided with the extensions and 1-6 with openslotted ends and the rigid pin 33 on the casing adapted for holdingengagement with the slotted ends of the washer extensions substantiallyas and for the purpose stated.

In testimony whereof we have signed our names to this specification inthe presence of two subscribing witnesses.

I*I1'1IwtlJ()Vi/ W. BAILEY. WILLIAM J. PARKINSON.

lVitnesses:

L. NEUBECK, W. T. MILLER.

